Clamp.



C. W. (:2 J. T. KEMPER.

CLAMP.

APPLICATION FILED JUNE 7. 1917.

IN VENTORS.'-

Amomvmrs m: NOR/7:5 PErERs 0n mmrma. wnsmNc'mN. n. c.

' ating clamp members,

clamp section interior CHARLES W. KEMPER AND JOHN '1. KEMPEB, 0F OAKLAND,

CALIFORNIA.

CLAMP.

Specification of Letters Patent.

Patented July 9, 1918.

Application filed. June 7, 1917. Serial No. 173,267.

To all whom it may concern:

I Be it known that we, CHARLES W. KEM- rm: and JOHN T. KEMPER, citizens of the United States, residing at Oakland, in the county of Alameda and State of California, have invented new and useful Improvements in Clamps, of which the following is a specification.

This invention relates to a clamp.

One of the objects of the present invention is to provide a simple, substantial, cheaply manufactured clamp whereby rope ends may be efiectively secured and revented from accidentally separating w en subjected to longitudinal strains, and particularly to construct the clamp in such a manner that it is self-locking when a pull is exerted and also easily released or quickly applied when required. Further objects will hereinafter appear.

-The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings in which- I Figure 1 is a side elevation, showing the application and use of the clam Fig.2 is a similar view, showing the clamp in section.

Fig. 3 is a side elevation of one half of the clamp.

Fig. 4 is an end view of Fig. 2.

Fig. 5 is a cross section on line 5-5 of Fig. 2.

Fig.6 is an end-view of one of the clamp sections, showing a modification of same.

Referring to the drawings in detail, A and B indicate in general a pair of cooperhereby rope ends and like devices may be efi'ectively secured and prevented from accidentally separating irrespective of the amount of strain that may be longitudinally exerted thereon. 7 The A consists of two side members 2 and 3 which are united by a bottom section 4:. This bottom section is straight at one end, asindicated at 5, while, the major portion is inclined, as at6. Formed 0n the side of the straight section is a plurality of corrugations 7 and formed in the inclined section is a slot 8. e

Suitably secured on the inner face of the inclined bottom section near one end by rivets or otherwise is a reinforcing plate 9, and adapted to be supported by said reinforcing p ate i ws mr g o r 1 This adapted to be received with relation to each other 1 the corrugated inner faces 7 and 7 roller is provided with a concaved or V shaped face 11 which is also corrugated to form a bight when engaging a rope section, such as shown at 12, and also to prevent slippage with relation to the plate 9. The roller 10 rests upon the plate 9 and is just wide enough to travel freely between the side sections 2 and 3. v

For the purpose of preventing the roller from being accidentally displaced or falling out of the clamp when therope ends are removed a wire 13 is provided. This wire is secured at one end to a pin 14: and at the opposite end in a perforation 15; a coil section 16 being formed on the wire to hold the wire sufliciently taut to prevent too free a movement of the roller. The clamp consisting of the bottom section 4 and the side sections 2 and 3 in reality forms a channelshaped member adapted to receive the rope end 12, and the upper edges of the side sections are bent outwardy, as shown in Fig. 5, to form projecting flan es 17 which are y channels 18 formed in the upper face of the clamp section B. This clamp section is also channelshaped in cross section and consists of side sections 2 and 3 which are united by a bottom section 4, this bottom section being corrugated, as at 7 and inclined, as at 6 to permit the formation of a slot 8 and also to form a support for a plate 9 which sup ports a roller 10 similar in shape and construction to the roller previously described. The clamps, in other words, are identical in construction except that one is provided with channels 18 while the opposite clamp is provided with flanges 17.

The clamps are adapted to be interlocked by sliding the section A endwise into the section B. A pair of rope ends, such as indicated at 12 and 12 when inserted will be engaged by the rollers 10 and 10" and as these in turn engage theplates 9 and 9 it can readily be seen that the. rollers will bite into the rope ends and thoroughly clamp the same against It can also be seen that any longitudinal pullexerted on either rope will only cause the clamps or the rollers mounted therein to exert a greater pressure,.thereby more effectively secur'ng the rope ends as the strain is increased. The wires 13 securing the rollers are only taut enough to prevent the same from accidentally falling out an i l G adapted interlocki cc rolling move.- 9Twhen the rope not interfere With their fr ment on the plates 9. and ends are inserted or ing brought together to secure the same;

The clamp sections are preferably stamped and folded oycizheavy 1sheet iron or steel material and may be cheaply manufactured The corrugated sections- 7 a'nd Y 7 may be roundin shape, asshown at 20 in. Figs. 4 and 5, to conform' :to; 'the outer oontour of the ropeyor theymaybeV shaped', as shown at'Ql in Fig. 6.

- The supporting "plates- 9 and are an important feature' as" they distribute the roller pressure evenly over a comparatively large surfaceof the inclined bottom sections, in this manner permitting the 'clan'ips to be made of comparatively thin material. The channel-shaped clamp section: B preferably closed atone end by! providing stop pins o1"tnrningthemetal over the1e1ids,'as shown at 24:, toprevent "the clamp section'A from-pulling through the channel section or moving out'of alinement Withsame When applied asshown in Fig. 1.

The clamp isparticularly useful in connection vvith' telephone Work" for securing guy-Wires; and to be used a temporary clamp While Working. Hovveven We Wish it understood that itinay be used as a rope eral and thatl'it may or cord clamp in gen advantage in the ad also be employed to justment of clothes lines, hammock supports, many other purposes.

tent ropes and for 7 We also Wish it understood that the materialsrand finish of the several parts employed may be such as, the experience and judgment of-the manufacturer may dictate. Having thus described ourinvention, What We claim and desireto secure by" Letters Patent is 7 I v 11..A -r0pe. clamp comprising a vpair of 1 interlocking clamping. sections slidable longitudinally With relation to each other and r-adapted to receiveiand inclose a pair bfcontacting rope ends, and agripping roller in eachclamp sectionadapted to automatically engage and grip the rope endsavhen a lon- Qgitudinalp ll is exerted on the rope ends.

2JA rope clamp comprising a-pair of interlocking clamping sectionsslidable lon- ;gitud-inally' vith relation to each otherand adapted to receive and inclose a pair of contacting rope ends, a.gr ipping rollerin each clamp section. ada gage andjgriplthe rope ends iv tudinal pull is exerted on there means limiting the movement of ing roller and seen endWise removal.

3. A rope clamp comprising a; pair ,of

'ng clamping sect-ions slidable lon- 1y With) relation tOr each other :and to ,rec'ejivewand inclose ia,.:pair fof "overlying 'ropeeiids, each clamping section hen a longipei ends, and each clampring thersame against gitii'dinal while theclamps are be pted to automatically 'enbeing channel-shaped and provided With a bottom section, and a portion --clamping rolle rope end and the j 1 adapted to autom the rope ends W are lroaght rage gitudinal pull A ro 3e clam T6011] arisin a Jair ofinl. V b p ng sections slidable longi- *With relatlon-to each other and "*terlocking fclain "tudinally' adapted to receii overlying rope en being channel-sha bottom-section, a p and a portion of clamping *roller trope end and the adapted'to autom "the rope-ends whf are brought togeth tudinal pull; is exe cfqsaid 'rollershav "itdtllG rope" I 5. TA rope clam terldeking. clam t-lidinally"with adapted to reoeiv overlying rope; ends 5 being channel-shape bottom section, a'porti and aportion ofWh-i ing rollerinter-post and the inclined b s u om t al y 'ga ends when the clampi together and also 1s exertedon 'the To posed between eac bottom sections, "and each "rcller adapted againstaccidental 6- .Th com in t n i benof the character dc having aj traveling m0 clamp, "said; roller shap'ed lin cross "sec over the roller sec j end and to a, mi j end. ,v

, 7. rope terloeki tudina adapted" to- 'rec eiv overlying wrope ends,

.each clamp section i engage and-gripthe r tudinal pull'is exerte means for limiting -;ment, cof. one. clam gather other.-

8. rThe oombinati anember of the cha roller hailing af tr inter a portionof Which-is straightwhich is inclined, and a interposed between each clined bottom sections cally engage w an dmxgrip in atl xerted on the rope.

e and inclose a pair of which is inclined,':ai id 'a posed b'etiveen each *inclined' b ottom sections atically engage and grip err/the clamping sections er andgalsowhen a longirted on the rope, the face mg a contour conforming p comprising; a "pair of inping 'sections slidable longirela tion to each, other? and l and inclose a pair' of each "clamping "section 9 5 d and provided With a on of which is straight ch is inclined; afclampi between each". rope end ed ottom' sections adapted to ge and llglfip theer p 11g sections are; brought hen a; longitudinal-pull pe, a bearing plateginter roller and the inclined a "spring passingover to secure the same removal.

th arclainpingmemscribed, of a roller 1 10 vement Within" the being approximately l V- ction and a wire -passin 1 uredf tothe casing at one lfspringi at tliBDPPOSitB of inng -clampingnsections slidable longi A lly ywi'th rel ation to V each otherfland e. and inclose pair 7 of a 5 gripping roller: in

apted to automatically ope ends when a longi d onthe rope ends;;-and thQrl-QIlgitUdlHaL-HIOVB- section with :"relation to the clamp, said roller being approximately V-shaped in cross section and having an annular groove formed at the bottom of the V-formation, said V sides of the roller being corrugated, and a wire passing through the annular groove in the roller secured to the clamp casing at one end and to a coil spring at the opposite end.

9. A rope clamp comprising a pair of clamping sections slidable longitudinally with relation to each other and adapted to receive an inclosing pair of overlying contacting rope ends, said clamping sections being approximately channel-shaped in cross section and each clamp having a bottom section, a portion of which is straight and a portion of which is inclined, corrugations formed in the faces of the straight portions of the bottom sections, a clamping roller interposed between each rope end and the in- Gopies of this patent may be obtained for &

clined bottom sections adapted to engage and grip the rope ends and force the ropes against the corrugated straight bottom sections, a channel-shaped flange formed on each side of one clamping section, said channel extending from end to end thereof, a flange formed on each side of the opposite clamping sect-ion adapted to enter the channels formed in the first named clamping section, said flanges also extending from end to end, and means for retaining the clamping rollers against accidental removal.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

CHARLES W. KEMPER. JOHN T. KEMPER.

Witnesses:

W. W'. HEALEY, M. E. EWING.

five cents each, by addressing the Commissioner of Patents,

Washington, .D. G. 

